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Class: SummaryExtractor

Extract summary from a list of nodes.

Hierarchy

Constructors

constructor

new SummaryExtractor(options?): SummaryExtractor

Parameters

NameType
options?SummaryExtractArgs

Returns

SummaryExtractor

Overrides

BaseExtractor.constructor

Defined in

packages/core/src/extractors/MetadataExtractors.ts:394

Properties

disableTemplateRewrite

disableTemplateRewrite: boolean = false

Inherited from

BaseExtractor.disableTemplateRewrite

Defined in

packages/core/src/extractors/types.ts:13


inPlace

inPlace: boolean = true

Inherited from

BaseExtractor.inPlace

Defined in

packages/core/src/extractors/types.ts:14


isTextNodeOnly

isTextNodeOnly: boolean = true

Inherited from

BaseExtractor.isTextNodeOnly

Defined in

packages/core/src/extractors/types.ts:10


llm

llm: LLM<object, object>

LLM instance.

Defined in

packages/core/src/extractors/MetadataExtractors.ts:376


metadataMode

metadataMode: MetadataMode = MetadataMode.ALL

Inherited from

BaseExtractor.metadataMode

Defined in

packages/core/src/extractors/types.ts:12


nextSummary

Private nextSummary: boolean

Defined in

packages/core/src/extractors/MetadataExtractors.ts:392


numWorkers

numWorkers: number = 4

Inherited from

BaseExtractor.numWorkers

Defined in

packages/core/src/extractors/types.ts:15


prevSummary

Private prevSummary: boolean

Defined in

packages/core/src/extractors/MetadataExtractors.ts:391


promptTemplate

promptTemplate: string

The prompt template to use for the summary extractor.

Defined in

packages/core/src/extractors/MetadataExtractors.ts:388


selfSummary

Private selfSummary: boolean

Defined in

packages/core/src/extractors/MetadataExtractors.ts:390


showProgress

showProgress: boolean = true

Inherited from

BaseExtractor.showProgress

Defined in

packages/core/src/extractors/types.ts:11


summaries

summaries: string[]

List of summaries to extract: 'self', 'prev', 'next'

Defined in

packages/core/src/extractors/MetadataExtractors.ts:382

Methods

extract

extract(nodes): Promise<{}[] | ExtractSummary[]>

Extract summaries from a list of nodes.

Parameters

NameTypeDescription
nodesBaseNode<Metadata>[]Nodes to extract summaries from.

Returns

Promise<{}[] | ExtractSummary[]>

Summaries extracted from the nodes.

Overrides

BaseExtractor.extract

Defined in

packages/core/src/extractors/MetadataExtractors.ts:443


generateNodeSummary

generateNodeSummary(node): Promise<string>

Extract summary from a node.

Parameters

NameTypeDescription
nodeBaseNode<Metadata>Node to extract summary from.

Returns

Promise<string>

Summary extracted from the node.

Defined in

packages/core/src/extractors/MetadataExtractors.ts:420


processNodes

processNodes(nodes, excludedEmbedMetadataKeys?, excludedLlmMetadataKeys?): Promise<BaseNode<Metadata>[]>

Parameters

NameTypeDefault valueDescription
nodesBaseNode<Metadata>[]undefinedNodes to extract metadata from.
excludedEmbedMetadataKeysundefined | string[]undefinedMetadata keys to exclude from the embedding.
excludedLlmMetadataKeysundefined | string[]undefinedMetadata keys to exclude from the LLM.

Returns

Promise<BaseNode<Metadata>[]>

Metadata extracted from the nodes.

Inherited from

BaseExtractor.processNodes

Defined in

packages/core/src/extractors/types.ts:34


transform

transform(nodes, options?): Promise<BaseNode<Metadata>[]>

Parameters

NameType
nodesBaseNode<Metadata>[]
options?any

Returns

Promise<BaseNode<Metadata>[]>

Inherited from

BaseExtractor.transform

Defined in

packages/core/src/extractors/types.ts:19